An overhead stirrer is a robust and versatile laboratory tool designed for mixing high-viscosity liquids and large volumes. It features a powerful motor that delivers precise control over stirring speed, ensuring uniform mixing even in demanding applications such as chemical synthesis, pharmaceutical development, and material science research.

With user-friendly controls, adjustable speed settings, and safety features, the overhead stirrer provided by Drawell is ideal for both research and industrial laboratories, offering consistent performance for processes requiring strong and efficient mixing.

LED Digital Overhead Stirrer OS40-S/ OS20-S

• Max Stirring Quantity (H2O): 40L/20L
• Constant Speed: NO
• Diaplay: LED
• Speed range: 50-2200rpm
• Max Torque: 60/40N.cm
• Viscosity Max: 50000/10000mPa.s

LCD Digital Overhead Stirrer OS70-Pro / OS40-Pro / OS20-Pro

• Max Stirring Quantity (H2O): 70L/40L/20L
• Constant Speed: YES
• Diaplay: LCD
• Speed range: 50-1100/50-2200/50-2200rpm
• Max Torque: 300/60/40N.cm
• Viscosity Max: 100000/50000/10000mPa.s

What is the Difference Between Magnetic Stirrer and Overhead Stirrer

1. Sample Volume

Overhead stirrers are generally better for mixing larger sample volumes, while magnetic stirrers are better for mixing smaller sample volumes. For magnetic stirrers, the stir bar size is really important. You can use a smaller stir bar if you have a small reaction vessel.

2. Viscosity

Different sample viscosities require different stirrers. Magnetic stirrers are better for samples with low to medium viscosities, while overhead stirrers are good for handling a wider range of viscosities.

3. Temperature Control

Some magnetic stirrers have heating functions, while others do not.

4. The Structure of the Tool

For different samples, the container shape and size required will be different, and an overhead stirrer may not be suitable, so a magnetic stirrer will be more suitable. But an overhead stirrer will mix better for round-bottom flasks.

Applications of Overhead Stirrer

Overhead stirrers are widely used in the fields of chemistry, biology, pharmacy, food and so on in the laboratory. The overhead stirrer is an instrument mainly used in the circulation of mixing, homogenization, suspension, injection of gas and high-viscosity substances. Electronic stirring can observe the viscosity changes in the reaction process.

1. Chemistry: it can be used to prepare chemical reactants,
2. Biological Research: agitation of the medium in the bioreactor,
3. Pharmacy: Mixed pharmaceutical preparations, etc.
4. Food: Stirring food has a variety of speed and power options, so it can adapt to various types of test materials and applications.

Overhead Stirrer Display

How to Choose the Model?

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Why Choose Us?

1. Rich categories.
2. The products are market-oriented and exported to many countries in the world.
3. Perfect sales system, efficient and fast after-sales service.
4. On-time delivery rate reaches 100%.
5. High-cost performance.

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